The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2005
Filed:
Jun. 13, 2002
Applicants:
Mitsuo Kinoshita, Aichi, JP;
Shinji Tamaki, Aichi, JP;
Inventors:
Mitsuo Kinoshita, Aichi, JP;
Shinji Tamaki, Aichi, JP;
Assignee:
Takemoto Yushi Kabushiki Kaisha, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F020/10 ; C08G063/52 ;
U.S. Cl.
CPC ...
Abstract
Allyletherester monomers to be used as an intermediate product for the production of graft copolymers and/or their salts for use as cement dispersants are prepared by an esterification reaction of α-allyl-ω-hydroxy-polyoxyalkylene refined so as to have peroxide value less than 5.0 meq/kg and aliphatic monocaboxylic acid under a specified condition in the absence of solvent and in the presence of an antioxidant.